Discontinuous Sturm‐Liouville Problems and Associated Sampling Theories

This paper investigates the sampling analysis associated with discontinuous Sturm‐Liouville problems with eigenvalue parameters in two boundary conditions and with transmission conditions at the point of discontinuity. We closely follow the analysis derived by Fulton (1977) to establish the needed relations for the derivations of the sampling theorems including the construction of Green′s function as well as the eigenfunction expansion theorem. We derive sampling representations for transforms whose kernels are either solutions or Green′s functions. In the special case, when our problem is continuous, the obtained results coincide with the corresponding results in the work of Annaby and Tharwat (2006).